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The following doses have been studied in scientific research:
BY MOUTH:
- For osteoarthritis: 1500 mg once daily or 500 mg three times daily, either alone or together with 400 mg of chondroitin sulfate two or three times daily, has been used for up to 3 years. Also glucosamine sulfate 750 mg twice daily in combination with turmeric root extract 500 mg twice daily has been used for 6 weeks.
APPLIED TO THE SKIN:
- For osteoarthritis: A cream containing 30 mg/gram of glucosamine sulfate, 50 mg/gram of chondroitin sulfate, 140 mg/gram of shark cartilage, 32 mg/gram of camphor, and 9 mg/gram of peppermint oil has been applied to the skin as needed for 8 weeks.
INJECTED INTO THE MUSCLE:
- For osteoarthritis: 400 mg of glucosamine sulfate has been injected twice weekly for 6 weeks. *
To supplement glucosamine, take 300 – 500 mg, three times a day, for a total daily dose of 900 – 1,500 mg. The benefits of glucosamine are dose-dependent, and studies use up to 2,000 – 3,000 mg a day, taken in several doses.
Glucosamine sulfate salts are the best way to supplement glucosamine, with glucosamine sulfate as a close second. Glucosamine hydrochloride is ineffective. N-Acetylglucosamine is not glucosamine and should be considered a different supplement.
Glucosamine should be supplemented alongside food. *